National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy to Excessive Rainfall in the Central Appalachians; Severe Weather in the Mid-South; Hot Weather in Southern California

Heavy to excessive rainfall may lead to flooding today over southwest Pennsylvania into northern West Virginia, and western Maryland. Severe thunderstorms are possible this afternoon and evening in the Mid-South and across Eastern North Carolina. An extended period of hot weather is forecast for parts of coastal southern California including Los Angeles from today through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Baltimore, Baltimore-Washington International Airport (KBWI)

Lat: 39.17°NLon: 76.68°WElev: 135ft.

Overcast

59°F

15°C

Humidity 83%
Wind Speed E 13 mph
Barometer 29.84 in (1010.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 21 May 2:54 pm EDT
Extended Forecast for

Glen Burnie MD

Coastal Flood Advisory May 21, 03:20pm until May 22, 05:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory May 21, 03:20pm until May 22, 05:00am

    NOW until 5:00am Thu

    Coastal Flood Advisory

  • This Afternoon

    High: 60 °F

    Scattered
    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 10pm, then showers likely. Patchy fog. Low around 55. East wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 55 °F

    Showers and
    Patchy Fog
    then
    Scattered
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 3pm. High near 68. Northwest wind 6 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 53. West wind 6 to 9 mph. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers after 2pm. Mostly sunny, with a high near 69. West wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Scattered showers, mainly between 4pm and 5pm. Cloudy, with a high near 60. East wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms before 10pm, then showers likely. Patchy fog. Low around 55. East wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Showers likely, then showers and possibly a thunderstorm after 3pm. High near 68. Northwest wind 6 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 53. West wind 6 to 9 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers after 2pm. Mostly sunny, with a high near 69. West wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Glen Burnie MD
 39.16°N 76.6°W (Elev. 30 ft)
Last Update:
2:34 pm EDT May 21, 2025
Forecast Valid:
3pm EDT May 21, 2025-6pm EDT May 28, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation